Hydrofoil surfboard fin



FIG. 1 is a perspective view from the front left of the hydrofoil surfboard fin of my new design;

FIG. 2 is an elevational view thereof from the front;

FIG. 3 is an elevation view thereof from the rear;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is an elevational view thereof from the right; and,

FIG. 7 is an elevational view thereof from the left.

The broken lines in FIGS. 1-7 show unclaimed subject matter, and form no part of the claimed design. 

CLAIM The ornamental design for a hydrofoil surfboard fin, as shown and described. 